Monitoring & Measurement

Dust Monitoring

Real-time dust monitoring that links particulate readings to site action, so dust is controlled before it becomes a complaint or compliance issue.

Dust controlled on site before it becomes a compliance issue

Open-pit mine with haul trucks and drilling rigs

Overview

Dust monitoring is the measurement of airborne particulate matter — typically PM1, PM2.5, PM10 and total suspended particulates (TSP) — at and around a site to control dust emissions and demonstrate compliance. It combines fixed or portable monitors, upwind and downwind locations, wind measurement and alert thresholds that trigger mitigation such as water spraying when levels rise.

Dust is often the most visible environmental impact of construction, demolition, quarrying, crushing, cement production, bulk handling at ports and many industrial operations. In Saudi Arabia's dry conditions, with frequent high winds and natural dust events, particulate levels can rise quickly, and it can be difficult to show whether elevated readings come from the site or from regional background. Environmental permits, environmental management plans and project specifications increasingly require continuous particulate monitoring with documented responses to high readings.

Our dust monitoring service designs and operates particulate networks for PM1, PM2.5, PM10 and TSP. Fixed continuous stations typically use optical light-scattering sensors for real-time indication, while reference or equivalent methods such as beta attenuation or gravimetric sampling are used where data must be directly comparable with standards. Portable monitors support short-term surveys and investigations. Stations are placed upwind and downwind, at fence-lines and near sensitive receptors, and paired with wind speed and direction sensors so readings can be attributed correctly.

The practical value lies in linking data to action. Real-time alerts notify site teams when particulate levels approach agreed trigger values, so water spraying, activity adjustments or other mitigation can start immediately. A data platform gives managers and consultants access to current and historical readings, while periodic reports document compliance, calibration checks and actions taken. Equipment can be purchased or rented depending on project duration, and the monitoring network can be relocated as construction phases or operations move across the site.

When you need this service

You may need this service when:

  • Your construction or demolition project specification requires continuous dust monitoring.
  • A quarry, crusher or cement plant needs fence-line particulate data for its environmental permit.
  • Neighbours or the authority have raised complaints about dust from your site.
  • You need evidence that high readings come from regional dust events, not your operations.
  • Your environmental management plan commits to dust trigger levels and documented mitigation.
  • A port or bulk handling terminal is expanding storage or loading operations.

What we deliver

01

Network design

Upwind and downwind station layout based on dust sources, prevailing winds, site boundaries and sensitive receptors, documented with trigger values and response procedures.

02

Fixed continuous stations

Real-time PM1, PM2.5, PM10 and TSP monitors using optical light-scattering sensors, with wind speed and direction sensors and remote data transmission.

03

Reference and equivalent methods

Beta attenuation or gravimetric sampling where results must be directly comparable with standards, or to check and correct optical sensor readings.

04

Real-time alerts

Configurable alerts by SMS or email when particulate levels approach trigger values, linked to agreed mitigation actions such as water spraying.

05

Data platform and reporting

Online access to live and historical readings, plus periodic compliance reports with wind analysis, exceedance logs and records of actions taken.

06

Calibration and supply options

Scheduled calibration checks and maintenance, with monitors available for purchase or rental depending on project duration and ownership preferences.

Our approach

  1. Site assessment

    We identify dust sources, activities, prevailing winds, receptors and applicable requirements, and review project specifications or permit conditions.

  2. Network design

    We define monitor locations, PM fractions, measurement methods, trigger values and the alert and response procedure with your site team.

  3. Installation

    We install monitors and wind sensors, set up power and communications, configure the data platform and verify readings at commissioning.

  4. Operation and alerts

    We monitor data continuously, maintain equipment, carry out calibration checks and support site teams in responding to alerts.

  5. Reporting

    We issue periodic reports showing particulate levels, wind conditions, exceedances, their likely causes and mitigation actions taken.

  6. Relocation and review

    We relocate monitors as project phases change and review trigger values and network layout when operations or receptors change.

Deliverables

DeliverableFormatStage
Dust monitoring planPlan with network layout, trigger values and response procedure (PDF)Before mobilisation
Installation and commissioning recordCommissioning checklist and photos (PDF)At installation
Online data accessWeb dashboard with live and historical dataFrom commissioning
Alert logRecord of alerts and actions taken (Excel)Ongoing
Calibration check recordsCalibration and maintenance logs (PDF)Per maintenance schedule
Periodic dust monitoring reportReport with charts, wind roses and exceedance analysis (PDF)Monthly or per permit cycle

Regulatory context

  • Environmental Law and its Implementing Regulations, including requirements relating to ambient air quality and particulate emissions.
  • National Center for Environmental Compliance (NCEC) environmental permit conditions and inspections covering dust from construction and industrial activities.
  • Dust control and monitoring commitments in environmental management plans and construction environmental management plans.
  • Requirements of RCJY, MODON and project owners for dust monitoring within industrial cities and major development areas.
  • Recognised particulate measurement methods, including beta attenuation and gravimetric reference methods, selected to suit project requirements.

Requirements vary by activity, location and permit conditions. We confirm the applicable requirements for your project at the start of every engagement.

Industries served

Frequently asked questions

What is the difference between optical and reference dust monitors?

Optical light-scattering monitors give real-time readings and are well suited to alerts and site control, but their results can be affected by particle type and humidity. Reference or equivalent methods, such as beta attenuation or gravimetric sampling, are designed to produce results directly comparable with standards. Many networks combine both: optical monitors for real-time control and a reference method to check and correct the optical data.

How many dust monitors do we need?

At a minimum, most sites need one upwind and one or more downwind monitors so that site contribution can be separated from background. The final number depends on site size, the spread of dust sources, prevailing winds, the number and location of sensitive receptors and any requirements in your permit or project specification. We propose a layout after reviewing these factors with you.

How do real-time alerts work in practice?

Trigger values are agreed for each monitor, often with an early warning level and an action level. When a reading reaches a trigger, the system sends an SMS or email to named site personnel. The response procedure defines what happens next, such as starting water spraying, pausing a dusty activity or checking wind conditions. Each alert and response is logged and included in reports.

Should we buy or rent dust monitoring equipment?

Rental usually suits construction projects with a defined duration, because equipment can be returned or relocated when work ends. Purchase can make more sense for permanent operations such as quarries, cement plants or ports, where monitoring will continue for many years. We explain the costs and responsibilities of each option, including maintenance and calibration, so you can choose on a clear basis.

How do you deal with regional dust storms in the data?

Natural dust events can raise particulate levels across a wide area. By comparing upwind and downwind monitors and analysing readings against wind speed and direction, we can usually show whether a peak came from the site or from regional conditions. These events are identified in reports so that your compliance record reflects your actual site contribution.

Related services

Air Quality Monitoring

Ambient air quality monitoring for gases, particulates and meteorology, plus stack emissions measurement, with validated data and compliance-ready reports.

Key benefit: Clear evidence of air quality performance for permits and stakeholders

Environmental Monitoring

Design and delivery of multi-media environmental monitoring programmes: sampling plans, field work, laboratory coordination, data QA/QC and periodic compliance reports.

Key benefit: Defensible environmental data that keeps permit reporting on track

Environmental Management Plans

Construction and operational environmental management plans that define mitigation, monitoring, responsibilities and KPIs for contractors and operators.

Key benefit: Approval commitments translated into practical, auditable site controls

Environmental Compliance

Ongoing compliance management: obligation registers, inspection readiness, responses to regulatory notices and violations, and corrective action plans that close gaps.

Key benefit: Lower exposure to violations and operational disruption

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